General description By installing a genuine OKI Yellow Toner Cartridge (43865721) in your OKI C5850 laser printer, you can enjoy high-quality prints with vivid color, crisp text, and reliable operation. This standard yield toner cartridge is packed with enough toner to print 6,000 pages. Usage If you notice faded print or a Toner Low message on your printer's display, order a replacement cartridge as soon as possible. When you see a Toner Empty message, replace the old cartridge and resume printing with the minimum of delay.